Re: Data Encryption in PostgreSQL, and a Tutorial.

does any one know how to get an md5()-like hash function using pgcrypto
for postgresql 7.3 ? without upgrading to 7.4

Thanks for any input.

Dias

scott.marlowe wrote:
> On Sun, 11 Apr 2004, Jerry McBride wrote:
>
>
>>T. Relyea wrote:
>>
>>
>>>Mike Cox wrote:
>>>
>>>
>>>>Has anyone created something like that for Postgresql? It would be
>>>>really handy to encrypt credit card numbers and other information so
>>>>it stays secure.
>>>>
>>>>If no one has created anything such as this, I am going to code up
>>>>something quite soon, but if it already exists, there is no need for
>>>>me to reinvent the wheel, so speak up! It is a law in places such as
>>>>the EU that many types of data must be encrypted if the database is
>>>>compromised.
>>>>
>>>>I will put up my solution in a few days if one does not exist. But
>>>>before I do that, I want to give a quick tutorial on how to create a
>>>>file that will create tables, views and other such essentials. Most
>>>>people who use PostgreSQL just type in the commands in PostgreSQL, but
>>>>that is not as easily portable or backed up as what I'm about to show
>>>>you!
>>>>
>>>>1. open vi with a file.
>>>>2. Comments can be made as long as you add to slashes before the
>>>>line:
>>>>--this is a comment.
>>>>3. Next just type in the SQL commands you want!
>>>>4. after you are done, save the file.
>>>>5. then just do this to create the database you made in the file:
>>>>psql database_name < my_vi_file
>>>>6.That is it!
>>>>
>>>>Here is a very simple sample of a file:
>>>>
>>>>--This is a sample file. Use at your own risk. No Warranties
>>>>--Written by Mike Cox, author of the *nix "hm" command.
>>>>
>>>>create table first(
>>>>MYNUMBER INTEGER);
>>>>
>>>>create VIEW myview AS
>>>>select * from first;
>>>>
>>>>--Ok this is the end. As you can see it is very simple and portable.
>>>>--Try it out. Here's how: psql your_database < this_file
>>>
>>>MySQL has encryption and decryption functions built in, doesn't
>>>Postgresql?
>>>
>>>Todd
>>
>>Obviously not... that's why we don't use it at work....
>
>
> let's see:
>
> su -
> cd /usr/local/src/postgresql-7.4.2
> cd contrib/pgcrypto
> make
> make install
>
> Total time taken: <30 seconds.
>
> If that's a make or break deal for you on a database I'd hate to go car
> buying with you.
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
>